Gaming
Steam Launcher
Steam’s desktop client mixes native components with embedded web views, so it accumulates several kinds of temporary data while rendering the Store, Library, Community, and in-client dialogs. That includes HTTP cache objects, Chromium disk cache files, V8 Code Cache bytecode, GPUCache entries, GrShaderCache and ShaderCache shader blobs, plus client logs and crash dumps created during updates, downloads, overlays, and web UI rendering. Kudu removes those disposable caches, logs, and dump files without touching installed games, save data, account details, or Steam settings.
Why it matters
Why clean Steam Launcher?
- Corrupted Chromium disk cache in Steam’s htmlcache can make the Store or Library load as blank panes, spin forever, or show outdated page content until the cache is rebuilt
- Stale V8 Code Cache after a Steam client update can leave embedded web UI code invalidated, causing a noticeably slow first launch or missing interface elements while scripts recompile
- GPUCache entries tied to an older graphics driver can become invalid after a driver update, leading to black windows, flickering panels, or sluggish scrolling in Steam’s web-based interface
- Old GrShaderCache and ShaderCache blobs can force shader recompilation or fallback rendering paths, which users notice as stutter when opening the client, overlay glitches, or delayed UI animations
- An oversized appcache HTTP cache keeps obsolete web assets and repeated partial responses, so the Store, Community, or friends panels may display broken images, stale banners, or fail to refresh correctly
- Steam client logs and crash dumps can grow quietly after repeated download errors, overlay crashes, or update loops, consuming hundreds of megabytes or more even though they are no longer needed for normal use
What gets cleaned
Cache paths Kudu targets
Windows
%ProgramFiles(x86)%/Steam/logs |
%ProgramFiles(x86)%/Steam/dumps |
%ProgramFiles(x86)%/Steam/appcache/httpcache |
%LocalAppData%/Steam/htmlcache/Default/Cache |
%LocalAppData%/Steam/htmlcache/Default/Code Cache |
%LocalAppData%/Steam/htmlcache/Default/GPUCache |
%LocalAppData%/Steam/htmlcache/GrShaderCache |
%LocalAppData%/Steam/htmlcache/ShaderCache |
macOS
~/Library/Application Support/Steam/logs |
~/Library/Application Support/Steam/appcache/httpcache |
Linux
~/.steam/steam/logs |
~/.local/share/Steam/logs |
~/.local/share/Steam/appcache/httpcache |
Frequently asked
Common questions about Steam Launcher
Free & open source
Download Kudu and reclaim your disk space.
Available on Windows, macOS, and Linux. No account required, no feature gates, no telemetry without consent. All cleaning targets are open source and community-auditable.